7 case studies from Manny's Systems Studio. Each covers the problem, what I owned, the decisions that mattered, and evidence you can check.
live
A little local habitat where your repos live.
A local-first terminal app that turns the repositories on a machine into a deterministic pixel habitat, with rooms, journal entries, repo notes, recent commits, and optional GitHub discovery.
Source is public on GitHub, and the CLI installs from npm.
live
Which crossing, which lane, when to leave.
A border-wait planning product for northbound San Ysidro and Otay Mesa crossings. This case study covers the mobile app, and the service and operator tools behind it stay private.
Available on the App Store and Google Play.
live
One booking platform running several live band brands.
A multi-tenant booking platform for tribute and cover bands: discovery, buyer intake, owner workflows, moderation, reviews, inquiries, content operations, analytics, imports, and billing readiness.
Deployments: MZTributeBands
The live tenants are the public reference, and the BandHub source stays private.
live
Three focused HubSpot apps, and everything around them.
A public HubSpot product suite: DupliCat for repeatable record cloning, PressKit for Company-based press-kit publishing, and TabCalendar for year-view availability planning.
The site, app pages, documentation, pricing, trust pages, and direct installs are live. A HubSpot Marketplace listing is planned, and PressKit and TabCalendar run with controlled access.
live
A clearer path through green-card planning.
A bilingual guide to U.S. green card pathways, backed by official sources, with pathway browsing, checklist flows, source tracking, admin review tools, and freshness checks.
Information only, not legal advice. Check any decision against the official sources.
live
Searchable memory for a long-running tabletop campaign.
Campaign memory for a long-running Pathfinder campaign. It reads in session logs and turns them into a force-directed relationship graph, a "catch-up" recap generator, a filterable timeline, a stats dashboard, an open-loop thread board, and full-text search.
A personal, non-commercial fan tool for a published Pathfinder adventure (an independent Paizo product). The public showcase shows only the tool’s own interface and data, and the adventure’s copyrighted art and maps stay off it. The in-app campaign Q&A stays behind a password.
archived
A live MMO, its community, and its tools, archived after it closed in 2023.
A Renewal MMO that kept shipping game releases, with a whole product around it: accounts, an economy, competition, documentation, community, and support. The linked archive keeps its January 2023 public homepage.
It closed in July 2023 and no longer runs. The linked page is a rebuilt copy of the homepage you can look at but not use, with every login and service link turned off.